Hollow heat exchange plate



June 12 1934. E. GOFFERJE HOLLOW HEAT EXCHANGE PLATE Filed Jan. 19, 1935 Fig. 1.

:Il Ixllllll lll. "Il l l Patented `'une 12, 1934 UNITED STATES 1,962,954 HOLLOW HEAT EXCHANGE PLATE Emil Gofferje, Basel, Switzerland, assignor to firm Society of Chemical Industry in Basle,

Basel, Switzerland Application January 19, 1933, Serial No. 652,533 In Switzerland November 11, 1931 2 Claims.

This invention relates to a hollow heat exchange plate for use in heat exchange apparatus.

According to the invention the hollow heat exchange plate comprises in combination two parallel walls and intermediate partition bars arranged by pairs in staggered relation from distance to distance over the extent of said plate, one bar of said pairs being fixed to the inner side of one wall, the other to the inner side of the other wall, the bars of each pair having on their adjacent sides laterally outstanding ribs engaging with one another in a hooklike manner, so as to constitute a tight inner connection and to ensure the parallelism of the heat exchange walls over their whole extent.

The accompanying drawing illustrates the invention, Fig. 1 being a side view, partly in section, of a hollow heat exchange plate constructed according to the invention and Fig. 2 is a sectional plan. Fig. 3 shows in section several constructions of profiled bars and Fig. 4 is a sectional plan of another construction.

The hollow heat exchange plate comprises two walls P with intermediate partition bars F. These bars F have on their adjacent sides laterally outstanding ribs engaging with one another whereby the two walls are connected together in a Very simple manner.

Ihe proled bars can have various shapes; in Fig. `3 four such shapes are shown and lettered A, B, C, D respectively.

A particular advantage belongs to the shape shown in Fig. 4, in which within at least one pair of bars the rib carrying bars of one of them are oppositely directed to those of another pair of bars, so that after the walls have been put together, they cannot be shifted horizontally relatively to each other.

The hollow heat exchange plate is completed by side walls.

The hollow heat exchange plate according to the invention differs from the known plates for heat exchange apparatus by the simplicity of the mode of connecting the walls andthe correspondingly cheap construction, as well as by the fact that by these interconnections there are simultaneously formed the necessary iiuid guiding partitions within the plate.

The plates are applicable for many purposes, for instance, for heating rooms, for drying, evaporating, distilling, cooling and, therefore, both as heating plates and as cooling plates.

What I claim is:- 1. Hollow heat exchange plate, comprising i combination two parallel walls and intermediate partition bars arranged by pairs in staggered relation from distance to distance over the extent of said plate, one bar of each of said pairs being xed to the inner side of one wall, the other to the inner side of the other wall, the bars of each pair having on their adjacent sideslaterally outstanding ribs engaging with one another in a hooklike manner, so as to constitute a tight inner connection and to ensure the parallelism of the heat exchange walls over their whole extent.

2. Hollow heat exchange plate, comprising in combination two parallel walls and intermediate partition bars arranged by pairs in staggered relation from distance to distance over the extent of said plate, one bar of each of said pairs being fixed to the inner side of one wall, the other to the inner side of the other wall, the bars of each pair having on their adjacent sides laterally outstanding ribs engaging with 'one another in a hooklike manner, so as to constitute a tight inner connection and to ensure the parallelism of the heat exchange walls over their whole extent, wherein within at least one pair of bars the rib carrying bars of one of them are oppositely directed to those of another pair of bars.

EMIL GOFFERJE. 

